13987648 has 28 divisors (see below), whose sum is σ = 29220160. Its totient is φ = 6625152.

The previous prime is 13987627. The next prime is 13987663. The reversal of 13987648 is 84678931.

It is a happy number.

13987648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13987598 and 13987607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4536 + ... + 6967.

Almost surely, 2^13987648 is an apocalyptic number.

It is an amenable number.

13987648 is an abundant number, since it is smaller than the sum of its proper divisors (15232512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13987648 is a wasteful number, since it uses less digits than its factorization.

13987648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11534 (or 11524 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 13987648 is about 3740.0064171068. The cubic root of 13987648 is about 240.9433244252.

The spelling of 13987648 in words is "thirteen million, nine hundred eighty-seven thousand, six hundred forty-eight".